<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"  %>
<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags"%> 
<%String path=request.getContextPath(); %>  
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=path%>/">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

<h3>这是index.jsp</h3>
Welcome:<shiro:principal/><br/>
<a href="redirect/tologin">登录</a>
</body>
</html>